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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2007-09-05 14:32:49 +0200
committerIngo Molnar <mingo@elte.hu>2007-09-05 14:32:49 +0200
commit4a55b45036a677fac43fe81ddf7fdcd007aaaee7 (patch)
tree86558fa9997e28194d84b997011ed91cde49746c /kernel
parent7c92e54f6f9601cfa9d8894ee248abcf62ed9a1c (diff)
downloadlinux-linaro-4a55b45036a677fac43fe81ddf7fdcd007aaaee7.tar.gz
sched: improve prev_sum_exec_runtime setting
Second preparatory patch for fix-ideal runtime: Mark prev_sum_exec_runtime at the beginning of our run, the same spot that adds our wait period to wait_runtime. This seems a more natural location to do this, and it also reduces the code a bit: text data bss dec hex filename 13397 228 1204 14829 39ed sched.o.before 13391 228 1204 14823 39e7 sched.o.after Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/sched_fair.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index f0dd4be1a3a..2d01bbc2d04 100644
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -684,10 +684,8 @@ __check_preempt_curr_fair(struct cfs_rq *cfs_rq, struct sched_entity *se,
* preempt the current task unless the best task has
* a larger than sched_granularity fairness advantage:
*/
- if (__delta > niced_granularity(curr, granularity)) {
+ if (__delta > niced_granularity(curr, granularity))
resched_task(rq_of(cfs_rq)->curr);
- curr->prev_sum_exec_runtime = curr->sum_exec_runtime;
- }
}
static inline void
@@ -703,6 +701,7 @@ set_next_entity(struct cfs_rq *cfs_rq, struct sched_entity *se)
update_stats_wait_end(cfs_rq, se);
update_stats_curr_start(cfs_rq, se);
set_cfs_rq_curr(cfs_rq, se);
+ se->prev_sum_exec_runtime = se->sum_exec_runtime;
}
static struct sched_entity *pick_next_entity(struct cfs_rq *cfs_rq)